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LF: Laser link...

To: [email protected]
Subject: LF: Laser link...
From: Stefan Schäfer <[email protected]>
Date: Sat, 08 Oct 2011 19:09:47 +0200
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LF,

Just thought about trying a LF RX in the forest and feed the signal via a laser link to the building here. There is a good direct view to several suitable places, a good 1000m distant from the city. A simple laser diode, driven at 15 to 20 mA should work fine for some hours when having a solar panel that charges during the day. You know these small lamps for the garden with a solar panel, switching on automatically when it gets dark... Just seen HA6PC at OE3GHB-grabber but nothing here or at DF6NM (yes Mal, i know, you've all worked them in the past...).
Pure AM is probably not the best choice, rather FM.
Does someone of you has useful experiance of such a laser system or even a ready to use circuit or some hints about a compact IC that does the job?

No warnings about the danger of laser light please.

73, Stefan/DK7FC

PS: Sri for beeing a bit OT


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